<?php
/**
 * Smarty Internal Plugin Compile Registered Function
 *
 * Compiles code for the execution of a registered function
 *
 * @package    Smarty
 * @subpackage Compiler
 * @author     Uwe Tews
 */

/**
 * Smarty Internal Plugin Compile Registered Function Class
 *
 * @package    Smarty
 * @subpackage Compiler
 */
class Smarty_Internal_Compile_Private_Registered_Function extends Smarty_Internal_CompileBase {

	/**
	 * Attribute definition: Overwrites base class.
	 *
	 * @var array
	 * @see Smarty_Internal_CompileBase
	 */
	public $optional_attributes = array('_any');

	/**
	 * Compiles code for the execution of a registered function
	 *
	 * @param array  $args      array with attributes from parser
	 * @param object $compiler  compiler object
	 * @param array  $parameter array with compilation parameter
	 * @param string $tag       name of function
	 *
	 * @return string compiled code
	 */
	public function compile($args, $compiler, $parameter, $tag) {
		// This tag does create output
		$compiler->has_output = true;
		// check and get attributes
		$_attr = $this->getAttributes($compiler, $args);
		if ($_attr['nocache'])
		{
			$compiler->tag_nocache = true;
		}
		unset($_attr['nocache']);
		if (isset($compiler->smarty->registered_plugins[Smarty::PLUGIN_FUNCTION][$tag]))
		{
			$tag_info = $compiler->smarty->registered_plugins[Smarty::PLUGIN_FUNCTION][$tag];
		}
		else
		{
			$tag_info = $compiler->default_handler_plugins[Smarty::PLUGIN_FUNCTION][$tag];
		}
		// not cachable?
		$compiler->tag_nocache = $compiler->tag_nocache || !$tag_info[1];
		// convert attributes into parameter array string
		$_paramsArray = array();
		foreach ($_attr as $_key => $_value)
		{
			if (is_int($_key))
			{
				$_paramsArray[] = "$_key=>$_value";
			}
			elseif ($compiler->template->caching && in_array($_key, $tag_info[2]))
			{
				$_value = str_replace("'", "^#^", $_value);
				$_paramsArray[] = "'$_key'=>^#^.var_export($_value,true).^#^";
			}
			else
			{
				$_paramsArray[] = "'$_key'=>$_value";
			}
		}
		$_params = 'array(' . implode(",", $_paramsArray) . ')';
		$function = $tag_info[0];
		// compile code
		if (!is_array($function))
		{
			$output = "<?php echo {$function}({$_params},\$_smarty_tpl);?>\n";
		}
		else if (is_object($function[0]))
		{
			$output = "<?php echo \$_smarty_tpl->smarty->registered_plugins[Smarty::PLUGIN_FUNCTION]['{$tag}'][0][0]->{$function[1]}({$_params},\$_smarty_tpl);?>\n";
		}
		else
		{
			$output = "<?php echo {$function[0]}::{$function[1]}({$_params},\$_smarty_tpl);?>\n";
		}

		return $output;
	}

}

?>
